A regional planner is often called a city planner or urban planner if his or her work mainly involves urban planning and urban design. City and town planning can involve facilities and infrastructure such as hospitals, public housing, and recreational facilities.Regional planning can also involve non-urban areas. regional planner is often called a city planner or urban planner if his or her work mainly involves urban planning and urban design. City and town planning can involve facilities and infrastructure such as hospitals, public housing, and recreational facilities.
-The iodoform test or reaction is a chemical reaction where iodoform (CHI3) is produced by the multiple halogenation of a methyl ketone (a molecule containing the R-CO-CH3 group) in the presence of a base. R may be H, alkyl or aryl.The reaction can be used to produce CHCl3, CHBr3 or CHI3.thanal is the only aldehyde to give the iodoform reaction. Finally, OH- (aqueous) is added, which reacts with, for example, the triiodoacetone. CH3COCI3 + OH- â CHI3 + CH3COO-Iodoform, or triiodomethane (I3CH) is a pale yellow substance. It is therefore a solid at room temperature.
Ketones and carboxylic acids cannot be oxidized and therefore will not react with chromic acid or Benedictâs reagent. Iodoform Test Compounds that contain a methyl group attached to a carbonyl carbon will react with I 2 in a basic solution to produce a yellow precipitate of iodoform (CHI 3). Many (but not all) ketones will undergo this reaction. Acidity Carboxylic acids are weak acids, and will ionize to a slight extent in water.